Meter Illumination Does Not Dim At Night [02/2014 - ]: Procedure
- CHECK CAN COMMUNICATION SYSTEM
- Check if CAN communication DTCs are output.
Refer to DIAGNOSIS SYSTEM [02/2014 - 11/2016] .
Refer to DIAGNOSIS SYSTEM [11/2016 - ] .
Result Proceed to CAN communication DTCs are not output. A CAN communication DTCs are output. B
Result:
B
GO TO CAN COMMUNICATION SYSTEM:
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2014 - 11/2016] .
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ] .
Result:
A
Go to next step
- Check if CAN communication DTCs are output.
- READ VALUE USING TECHSTREAM (LIGHT SENSOR ILLUMINANCE)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Main Body / Data List.
- Check the values by referring to the table below.
Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Light Sensor Illuminance Light sensor illuminance 0 to 8191 lx Value is output according to ambient light level - Body Electrical > Main Body > Data List
Tester Display Light Sensor Illuminance Result Proceed to The output value changes according to the ambient light level. A The output value does not change according to the ambient light level. B
Result:
B
CHECK CUSTOMIZE PARAMETER SETTING (SENSITIVITY):
Refer to CUSTOMIZE PARAMETERS [02/2014 - 11/2016] .
Refer to CUSTOMIZE PARAMETERS [11/2016 - ] .
Result:
A
Go to next step
- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
- Replace the main body ECU (multiplex network body ECU) with a new or known good one.
Refer to REMOVAL [02/2014 - 11/2016] .
Refer to REMOVAL [11/2016 - ] .
OK
The operation of the combination meter assembly returns to normal.
HINT:
The combination meter assembly controls the meter illumination based on an auto dimmer signal from the main body ECU (multiplex network body ECU). If the combination meter assembly does not dim when the headlight dimmer switch assembly is in the tail, head or AUTO position at night, it may be for one of 2 reasons. The first reason is that the main body ECU (multiplex network body ECU) did not send an auto dimmer signal. The second is that the combination meter assembly did not dim the meter illumination even though the combination meter assembly received an auto dimmer signal.
Proceed to OK NG
Result:
OK
END
Result:
NG
REPLACE COMBINATION METER ASSEMBLY:
Refer to REMOVAL [02/2014 - ] .
- Replace the main body ECU (multiplex network body ECU) with a new or known good one.